CN114682435B - Adhesive dispensing device for precision parts - Google Patents
Adhesive dispensing device for precision parts Download PDFInfo
- Publication number
- CN114682435B CN114682435B CN202011583221.8A CN202011583221A CN114682435B CN 114682435 B CN114682435 B CN 114682435B CN 202011583221 A CN202011583221 A CN 202011583221A CN 114682435 B CN114682435 B CN 114682435B
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- Prior art keywords
- door
- bin body
- vacuum bin
- door body
- dispensing device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
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- Physical Vapour Deposition (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention discloses a glue dispensing device for precision parts, which comprises a vacuum bin body, a frame, a glue dispensing valve and a workbench, wherein the vacuum bin body is arranged on the frame, an air extraction opening is formed in the outer surface of one side of the vacuum bin body, a flange part extending inwards in the radial direction is arranged on the inner wall of one end of the air extraction opening, which is close to the inside of the vacuum bin body, a first flange plate is embedded into the air extraction opening, a door opening is formed in the vacuum bin body, a sealing ring is arranged at the peripheral edge of the door opening, a movable door body is arranged at the front side of the door opening, a door frame is arranged on the left side and the right side of the door opening, a linear guide rail is arranged on the vacuum bin body positioned on the left side and the right side of the door opening, and the two door frames are respectively connected with the corresponding linear guide rails through a sliding block, so that the door body can move up and down along the vertical direction. The invention can avoid the position deviation between the door body and the sealing ring caused by left and right shaking of the door body in the moving process, and ensure the stability of the sealing performance in the vacuum bin body when the door body is in a closed state.
Description
Technical Field
The invention relates to the technical field of vacuum cavity sealing, in particular to a glue dispensing device for precision parts.
Background
The vacuum cavity is mainly applied to the field of product dispensing and packaging, and utilizes the acting force of negative pressure to firstly pump away the air in the vacuum box in the pouring process, then the product is poured, glue can be quickly infiltrated into the product, and the pouring impact and the bubbles generated by the contact of the glue and the product can be quickly pumped away under the action of the negative pressure, so that the high performance of the product is ensured. In the prior art, when the cavity is vacuumized, the vacuum value in the cavity is unstable due to the fact that the pressure in the cavity is greatly different from the external pressure and the time delay property is provided when the valve is closed. And the adsorption force generated by the larger internal and external pressure difference has higher output power requirement on the closing mechanism of the valve, and the valve opening and closing mechanism with larger kinetic energy can impact the cavity, so that the service life of the valve is reduced.
Disclosure of Invention
The invention aims to provide a dispensing device for precise parts, which can prevent the door body from moving left and right in the moving process to cause the position offset between the door body and a sealing ring, and ensure the stability of the sealing performance in a vacuum bin body when the door body is in a closed state.
In order to achieve the above purpose, the invention adopts the following technical scheme: the dispensing device for the precise parts comprises a vacuum bin body, a frame, a dispensing valve and a workbench, wherein the vacuum bin body is arranged on the frame, the dispensing valve and the workbench are both positioned in the vacuum bin body, and the dispensing valve is positioned right above the workbench;
an extraction opening is formed in the outer surface of one side of the vacuum bin body, a flange part extending radially inwards is arranged on the inner wall of one end, close to the inside of the vacuum bin body, of the extraction opening, a first flange plate is embedded into the extraction opening, the end face of one end of the first flange plate is in surface contact with the end face of the corresponding flange part, and the other end of the first flange plate is connected with a piston rod of a first cylinder correspondingly arranged;
a connecting seat is arranged on the air extraction opening, one end face of the connecting seat is connected with the vacuum bin body, the first air cylinder is arranged on the other end face of the connecting seat, a piston rod of the first air cylinder is connected with the first flange plate through a first mandrel, a first through hole communicated with the air extraction opening is formed in the connecting seat along the direction of the first mandrel, the first mandrel is arranged in the first through hole in a telescopic manner, and an air extraction hole communicated with the first through hole is further formed in the connecting seat and is used for being connected with a vacuum pump;
the elastic piece is sleeved on the first mandrel, one end, close to the first flange, of the elastic piece is contacted with an outer flange part positioned at the tail end of the first mandrel, and the other end of the elastic piece is connected with the shell of the first cylinder in an extrusion mode;
a cushion block is arranged between the first cylinder and the connecting seat, the other end of the elastic piece is connected with the cushion block in an extrusion mode, a second through hole for a piston rod of the first cylinder and a first mandrel to penetrate is formed in the center of the cushion block, and an air outlet hole communicated with the second through hole is formed in the outer end face of the cushion block;
the vacuum bin body is provided with a door opening, a sealing ring is arranged at the peripheral edge of the door opening, the front side of the door opening is provided with a movable door body, the left side and the right side of the door body are respectively provided with a door frame, the vacuum bin body positioned at the left side and the right side of the door opening is respectively provided with a linear guide rail, and the two door frames are respectively connected with the corresponding linear guide rails through a sliding block, so that the door body can move up and down along the vertical direction;
a guide strip is arranged between the linear guide rail and the door frame, at least one rotatable guide bearing is arranged on the side end surface of the door frame, and when the door body moves up and down along the vertical direction, the guide bearing which moves up and down along with the door frame rolls on the front surface of the guide strip;
at least two rotatable rollers are arranged between the side end surfaces of the guide strips, which are close to the door frames, and the corresponding door frames, wherein the rollers are arranged at intervals along the movement direction of the door body, and when the door frames move up and down along with the door body, the side end surfaces of the guide strips are in rolling connection with the corresponding door frames through the rollers;
the front surface of the guide bar is provided with a groove corresponding to the guide bearing, the sliding block is connected with the door frame through a connecting block and a pin shaft, one end of the connecting block is connected with the sliding block, the side end surface of the other end of the connecting block is provided with a bar-shaped groove which is obliquely arranged, one end of the pin shaft is fixedly connected with the door frame, and the other end of the pin shaft is movably embedded into the bar-shaped groove;
when the door body is in a closed state, the guide bearing is embedded into the corresponding groove and forms a gap with the bottom surface of the groove, a gap is formed between the pin shaft positioned in the strip-shaped groove and one end of the strip-shaped groove, which is close to the sealing ring, and the door body is in extrusion contact with the sealing ring;
when the door body is in an open state, the guide bearing rolls out of the corresponding groove, the pin shaft positioned in the strip-shaped groove moves towards one end of the strip-shaped groove away from the sealing ring, and the door body and the sealing ring are arranged at intervals.
The further improved scheme in the technical scheme is as follows:
1. in the above scheme, the cushion block comprises a main body part close to the first cylinder and a protruding part embedded in the first through hole.
2. In the above scheme, the elastic piece is a bellows-shaped elastic piece.
3. In the above scheme, a supporting washer is arranged between the shell of the first cylinder and the elastic piece, and the supporting washer is sleeved on the first mandrel and is in extrusion contact with the end face of the elastic piece.
4. In the scheme, the end, close to the inside of the vacuum bin body, of the air extraction opening and the air inlet is provided with the arc-shaped chamfer.
5. In the scheme, the cylinder is arranged on the vacuum bin body and positioned below the sliding block.
6. In the above scheme, the recess includes plane depressed part and connects in the arc connecting portion at plane depressed part both ends respectively, the one end that plane depressed part was kept away from to arc connecting portion is located the coplanar with the front surface of gib block.
7. In the scheme, the included angle formed between the inclined direction of the strip-shaped groove and the moving direction of the door body is 30-60 degrees.
8. In the scheme, 2 idler wheels are installed in the installation groove on the door frame at intervals, and the circumferential surfaces of the idler wheels extend out of the installation groove and are in contact connection with the side end surfaces of the guide strips.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. according to the dispensing device for the precise parts, the piston rod of the air cylinder is connected with the first flange plate through the mandrel, the connecting seat is provided with the through hole communicated with the air extraction opening along the direction of the mandrel, the mandrel is telescopically arranged in the through hole, the mandrel is sleeved with the elastic piece, one end, close to the first flange plate, of the elastic piece is contacted with the outer flange part positioned at the tail end of the mandrel, the other end of the elastic piece is connected with the shell of the air cylinder in an extrusion mode, the first flange plate can be subjected to superposition force application when the first flange plate is closed through the arrangement of the elastic piece, the sealing performance of the first flange plate on the air extraction opening in the long-term use process is improved, impact caused by too fast shrinkage can be prevented in the opening process of the first flange plate, and the service life of the mechanism is prolonged.
2. According to the dispensing device for the precise parts, the cushion block is arranged between the first cylinder and the connecting seat, the other end of the elastic piece is connected with the cushion block in an extrusion mode, the second through hole for the piston rod of the first cylinder and the first mandrel to penetrate through is formed in the center of the cushion block, the air outlet hole communicated with the second through hole is formed in the outer end face of the cushion block, the piston rod of the cylinder can always keep constant driving force in the long-term reciprocating motion process, and the situation that the flange cannot be driven to seal the air extraction opening due to air holding is avoided.
3. According to the dispensing device for the precise parts, the guide bearing is matched with the groove and the pin shaft and the strip-shaped groove, and in the closing process of the door body, the pin shaft provides a tangential force, so that the guide bearing is embedded into the groove, and meanwhile, the door body extrudes the sealing ring, on the basis of saving space and being convenient to open and close, the tightness in the vacuum bin body is ensured when the door body is in a closed state, the abrasion to the sealing ring in the opening and closing process of the door body can be avoided, and the damage to the sealing ring caused by instant pressure relief when the door body is opened can be avoided, so that the stability of the sealing performance of the vacuum bin body in the long-term use process is ensured; furthermore, the gaps between the guide bearing and the groove and between the pin shaft and the strip-shaped groove are arranged, so that a telescopic space is provided, negative pressure is prevented from being transferred to the pin shaft to damage the pin shaft when the vacuum bin body is vacuumized, the door body can be enabled to be pressed against the sealing ring under the action of negative pressure, and the sealing performance is improved; in addition, it provides three-dimensional direction for the reciprocates of the door body through the gyro wheel and the guide bearing cooperation that the side direction set up, avoids the door body to take place to rock about in the removal in-process and leads to the position offset between door body and the sealing washer, further guarantees the stability of the internal sealing performance of vacuum storehouse when the door body is in the closed state.
Drawings
FIG. 1 is a schematic structural view of a dispensing device for precision parts according to the present invention;
FIG. 2 is a schematic diagram of the internal structure of a vacuum bin of the dispensing device for precision parts;
FIG. 3 is a schematic view showing a partial cross-sectional structure of the dispensing device for precision parts according to the present invention;
FIG. 4 is a schematic diagram of a cushion block in the dispensing device for precision parts according to the present invention;
FIG. 5 is a schematic diagram II of a cushion block in the dispensing device for precision parts;
FIG. 6 is a schematic diagram of a door opening and a sealing ring of the dispensing device for the precise parts;
FIG. 7 is a schematic diagram of the structure of a guide bar and a roller of the dispensing device for precision parts;
FIG. 8 is a schematic view of a door module structure of the dispensing device for precision parts according to the present invention;
fig. 9 is a schematic diagram of a partial structure of a door module of the dispensing device for precision parts according to the present invention.
In the above figures: 1. a vacuum bin body; 2. an extraction opening; 4. a flange portion; 5. a first flange; 7. a first cylinder; 9. a connecting seat; 10. a first mandrel; 101. an outer flange portion; 11. a first through hole; 12. an air suction hole; 14. an elastic member; 15. a support washer; 16. a frame; 17. dispensing valve; 18. a work table; 31. a cushion block; 311. a main body portion; 312. a boss; 32. a second through hole; 33. an air outlet hole; 35. a door opening; 36. a seal ring; 37. a door body; 38. a door frame; 39. a linear guide rail; 40. a sliding block; 41. a cylinder; 42. a guide bar; 43. a guide bearing; 44. a groove; 441. a planar depression; 442. an arc-shaped connecting part; 45. a connecting block; 46. a pin shaft; 47. a bar-shaped groove; 48. and a roller.
Detailed Description
In the description of this patent, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element in question must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in this patent will be understood by those of ordinary skill in the art in a specific context.
Example 1: the dispensing device for the precise parts comprises a vacuum bin body 1, a frame 16, a dispensing valve 17 and a workbench 18, wherein the vacuum bin body 1 is arranged on the frame 16, the dispensing valve 17 and the workbench 18 are both positioned in the vacuum bin body 1, and the dispensing valve 17 is positioned right above the workbench 18;
an air extraction opening 2 is formed in the outer surface of one side of the vacuum bin body 1, a flange part 4 extending inwards in the radial direction is formed in the inner wall of one end, close to the inside of the vacuum bin body 1, of the air extraction opening 2, a first flange plate 5 is embedded into the air extraction opening 2, the end face of one end of the first flange plate 5 is in surface contact with the end face of the corresponding flange part 4, and the other end of the first flange plate 5 is connected with a piston rod of a first cylinder 7 correspondingly arranged;
a connecting seat 9 is arranged on the air extraction opening 2, one end surface of the connecting seat 9 is connected with the vacuum bin body 1, the first air cylinder 7 is arranged on the other end surface of the connecting seat 9, a piston rod of the first air cylinder 7 is connected with the first flange plate 5 through a first mandrel 10, a first through hole 11 communicated with the air extraction opening 2 is formed in the connecting seat 9 along the direction of the first mandrel 10, the first mandrel 10 is telescopically arranged in the first through hole 11, an air extraction hole 12 communicated with the first through hole 11 is formed in the connecting seat 9, and the air extraction hole 12 is used for being connected with a vacuum pump;
an elastic piece 14 is sleeved on the first mandrel 10, one end, close to the first flange 5, of the elastic piece 14 is in contact with an outer flange part 101 positioned at the tail end of the first mandrel 10, and the other end of the elastic piece 14 is connected with a shell of the first cylinder 7 in an extrusion mode;
a cushion block 31 is arranged between the first air cylinder 7 and the connecting seat 9, the other end of the elastic piece 14 is connected with the cushion block 31 in an extrusion mode, a second through hole 32 for a piston rod of the first air cylinder 7 and the first mandrel 10 to penetrate is formed in the center of the cushion block 31, and an air outlet hole 33 communicated with the second through hole 32 is formed in the outer end face of the cushion block 31;
the vacuum bin body 1 is provided with a door opening 35, a sealing ring 36 is arranged at the peripheral edge of the door opening 35, a movable door body 37 is arranged at the front side of the door opening 35, a door frame 38 is respectively arranged at the left side and the right side of the door body 37, a linear guide rail 39 is respectively arranged on the vacuum bin body 1 at the left side and the right side of the door opening 35, and the two door frames 38 are respectively connected with the corresponding linear guide rail 39 through a sliding block 40, so that the door body 37 can move up and down along the vertical direction;
a guide bar 42 is installed between the linear guide rail 39 and the door frame 38, at least one rotatable guide bearing 43 is installed on a side end surface of the door frame 38, and when the door body 37 moves up and down along with the vertical direction, the guide bearing 43 which moves up and down along with the door frame 38 rolls on the front surface of the guide bar 42;
two rotatable rollers 48 are arranged between the side end surfaces of the guide strips 42, which are close to the door frame 38, and the corresponding door frame 38, wherein the rollers 48 are arranged at intervals along the movement direction of the door body 37, and when the door frame 38 moves up and down along with the door body 37, the side end surfaces of the guide strips 42 are in rolling connection with the corresponding door frame 38 through the rollers 48;
the front surface of the guide bar 42 is provided with a groove 44 corresponding to the guide bearing 43, the sliding block 40 is connected with the door frame 38 through a connecting block 45 and a pin shaft 46, one end of the connecting block 45 is connected with the sliding block 40, the side end surface of the other end of the connecting block 45 is provided with a bar groove 47 which is obliquely arranged, one end of the pin shaft 46 is fixedly connected with the door frame 38, and the other end of the pin shaft 46 is movably embedded into the bar groove 47;
when the door body 37 is in a closed state, the guide bearing 43 is embedded into the corresponding groove 44 and forms a gap with the bottom surface of the groove 44, a gap is formed between the pin shaft 46 positioned in the strip-shaped groove 47 and one end of the strip-shaped groove 47 close to the sealing ring 36, and the door body 37 is in extrusion contact with the sealing ring 36;
when the door 37 is in an open state, the guide bearing 43 rolls out of the corresponding groove 44, the pin 46 located in the bar-shaped groove 47 moves toward one end of the bar-shaped groove 47 away from the sealing ring 36, and the door 37 and the sealing ring 36 are arranged at intervals.
The pad 31 includes a main body portion 311 adjacent to the first cylinder 7 and a boss portion 312 fitted into the first through hole 11.
The elastic member 14 is a bellows-like elastic member.
A supporting washer 15 is arranged between the shell of the first cylinder 7 and the elastic piece 14, and the supporting washer 15 is sleeved on the first mandrel 10 and is in extrusion contact with the end surface of the elastic piece 14.
The inclination direction of the strip-shaped groove 47 forms an angle of 30 ° with the moving direction of the door body 37.
2 rollers 48 are arranged in the mounting groove of the door frame 38 at intervals, the circumferential surface of the roller 48 extends out of the mounting groove and is contacted and connected with the side end surface of the guide strip 42
Example 2: the dispensing device for the precise parts comprises a vacuum bin body 1, a frame 16, a dispensing valve 17 and a workbench 18, wherein the vacuum bin body 1 is arranged on the frame 16, the dispensing valve 17 and the workbench 18 are both positioned in the vacuum bin body 1, and the dispensing valve 17 is positioned right above the workbench 18;
an air extraction opening 2 is formed in the outer surface of one side of the vacuum bin body 1, a flange part 4 extending inwards in the radial direction is formed in the inner wall of one end, close to the inside of the vacuum bin body 1, of the air extraction opening 2, a first flange plate 5 is embedded into the air extraction opening 2, the end face of one end of the first flange plate 5 is in surface contact with the end face of the corresponding flange part 4, and the other end of the first flange plate 5 is connected with a piston rod of a first cylinder 7 correspondingly arranged;
a connecting seat 9 is arranged on the air extraction opening 2, one end surface of the connecting seat 9 is connected with the vacuum bin body 1, the first air cylinder 7 is arranged on the other end surface of the connecting seat 9, a piston rod of the first air cylinder 7 is connected with the first flange plate 5 through a first mandrel 10, a first through hole 11 communicated with the air extraction opening 2 is formed in the connecting seat 9 along the direction of the first mandrel 10, the first mandrel 10 is telescopically arranged in the first through hole 11, an air extraction hole 12 communicated with the first through hole 11 is formed in the connecting seat 9, and the air extraction hole 12 is used for being connected with a vacuum pump;
an elastic piece 14 is sleeved on the first mandrel 10, one end, close to the first flange 5, of the elastic piece 14 is in contact with an outer flange part 101 positioned at the tail end of the first mandrel 10, and the other end of the elastic piece 14 is connected with a shell of the first cylinder 7 in an extrusion mode;
a cushion block 31 is arranged between the first air cylinder 7 and the connecting seat 9, the other end of the elastic piece 14 is connected with the cushion block 31 in an extrusion mode, a second through hole 32 for a piston rod of the first air cylinder 7 and the first mandrel 10 to penetrate is formed in the center of the cushion block 31, and an air outlet hole 33 communicated with the second through hole 32 is formed in the outer end face of the cushion block 31;
the vacuum bin body 1 is provided with a door opening 35, a sealing ring 36 is arranged at the peripheral edge of the door opening 35, a movable door body 37 is arranged at the front side of the door opening 35, a door frame 38 is respectively arranged at the left side and the right side of the door body 37, a linear guide rail 39 is respectively arranged on the vacuum bin body 1 at the left side and the right side of the door opening 35, and the two door frames 38 are respectively connected with the corresponding linear guide rail 39 through a sliding block 40, so that the door body 37 can move up and down along the vertical direction;
a guide bar 42 is installed between the linear guide rail 39 and the door frame 38, at least one rotatable guide bearing 43 is installed on a side end surface of the door frame 38, and when the door body 37 moves up and down along with the vertical direction, the guide bearing 43 which moves up and down along with the door frame 38 rolls on the front surface of the guide bar 42;
at least two rotatable rollers 48 are arranged between the side end surfaces of the guide strips 42, which are close to the door frame 38, and the corresponding door frame 38, wherein the rollers 48 are arranged at intervals along the movement direction of the door body 37, and when the door frame 38 moves up and down along with the door body 37, the side end surfaces of the guide strips 42 are in rolling connection with the corresponding door frame 38 through the rollers 48;
the front surface of the guide bar 42 is provided with a groove 44 corresponding to the guide bearing 43, the sliding block 40 is connected with the door frame 38 through a connecting block 45 and a pin shaft 46, one end of the connecting block 45 is connected with the sliding block 40, the side end surface of the other end of the connecting block 45 is provided with a bar groove 47 which is obliquely arranged, one end of the pin shaft 46 is fixedly connected with the door frame 38, and the other end of the pin shaft 46 is movably embedded into the bar groove 47;
when the door body 37 is in a closed state, the guide bearing 43 is embedded into the corresponding groove 44 and forms a gap with the bottom surface of the groove 44, a gap is formed between the pin shaft 46 positioned in the strip-shaped groove 47 and one end of the strip-shaped groove 47 close to the sealing ring 36, and the door body 37 is in extrusion contact with the sealing ring 36;
when the door 37 is in an open state, the guide bearing 43 rolls out of the corresponding groove 44, the pin 46 located in the bar-shaped groove 47 moves toward one end of the bar-shaped groove 47 away from the sealing ring 36, and the door 37 and the sealing ring 36 are arranged at intervals.
The air extraction opening 2 and the air inlet 3 are provided with circular arc chamfer angles at one end close to the inside of the vacuum bin body 1.
A cylinder 41 is mounted on the vacuum chamber 1 below the sliding block 40.
The groove 44 includes a planar recess 441 and arc-shaped connecting portions 442 connected to two ends of the planar recess 441, wherein one end of the arc-shaped connecting portion 442 away from the planar recess 441 is located on the same plane as the front surface of the guide bar 42.
The inclination direction of the strip-shaped groove 47 forms an angle of 60 ° with the moving direction of the door body 37.
Working principle:
the first cylinder drives the first flange plate to stretch to control the opening and closing of the air suction flow passage, so that the operation of vacuumizing the vacuum cabin body is controlled;
the second cylinder drives the second flange plate to stretch to control the opening and closing of the air inlet flow passage and the air pressure change in the vacuum bin body;
when the first cylinder pulls the first flange plate away from the air extraction opening, the external connection air pump starts to work to extract air from the vacuum bin body;
when the air pressure in the vacuum bin body is larger than the preset value of the air pressure sensor arranged on the vacuum bin body, the first cylinder pushes the first flange plate into the air extraction opening;
pulling the second flange plate away from the air inlet, and adjusting the air pressure in the vacuum bin body until the air pressure reaches a preset value;
when the operation in the vacuum bin body is completed, the second flange plate is pulled away from the air inlet to release pressure.
When the device is adopted, the elastic piece is arranged, so that the first flange can be subjected to superposition force application when the first flange is closed, the sealing performance of the first flange to the extraction opening in the long-term use process is improved, the impact caused by too fast shrinkage in the first flange opening process can be prevented, and the service life of the mechanism is prolonged;
in addition, the piston rod of the air cylinder can always keep constant driving force in the long-term reciprocating motion process, and the situation that the flange plate cannot be driven to seal the extraction opening due to air holding is avoided;
in addition, the guide bearing is matched with the groove and the pin shaft and the strip-shaped groove, and in the closing process of the door body, the pin shaft provides a tangential force, so that the guide bearing is embedded into the groove, and meanwhile, the door body extrudes the sealing ring, on the basis of saving space and being convenient to open and close, the tightness in the vacuum bin body is ensured when the door body is in a closed state, the abrasion to the sealing ring in the opening and closing process of the door body can be avoided, and in addition, when the door body is opened, the damage to the sealing ring caused by instant pressure relief is avoided, so that the stability of the sealing performance of the vacuum bin body in the long-term use process is ensured;
furthermore, the gaps between the guide bearing and the groove and between the pin shaft and the strip-shaped groove are arranged, so that a telescopic space is provided, negative pressure is prevented from being transferred to the pin shaft to damage the pin shaft when the vacuum bin body is vacuumized, the door body can be enabled to be pressed against the sealing ring under the action of negative pressure, and the sealing performance is improved;
in addition, it provides three-dimensional direction for the reciprocates of the door body through the gyro wheel and the guide bearing cooperation that the side direction set up, avoids the door body to take place to rock about in the removal in-process and leads to the position offset between door body and the sealing washer, further guarantees the stability of the internal sealing performance of vacuum storehouse when the door body is in the closed state.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (9)
1. The utility model provides a precision parts is with adhesive deposite device which characterized in that: the automatic glue dispensing device comprises a vacuum bin body (1), a frame (16), a glue dispensing valve (17) and a workbench (18), wherein the vacuum bin body (1) is arranged on the frame (16), the glue dispensing valve (17) and the workbench (18) are both positioned in the vacuum bin body (1), and the glue dispensing valve (17) is positioned right above the workbench (18);
an extraction opening (2) is formed in the outer surface of one side of the vacuum bin body (1), a flange part (4) extending radially inwards is formed in the inner wall, close to one end inside the vacuum bin body (1), of the extraction opening (2), a first flange plate (5) is embedded into the extraction opening (2), the end face of one end of the first flange plate (5) is in surface contact with the end face of the corresponding flange part (4), and the other end of the first flange plate (5) is connected with a piston rod of a first cylinder (7) correspondingly arranged;
a connecting seat (9) is arranged on the air extraction opening (2), one end face of the connecting seat (9) is connected with the vacuum bin body (1), a first air cylinder (7) is arranged on the other end face of the connecting seat (9), a piston rod of the first air cylinder (7) is connected with the first flange plate (5) through a first mandrel (10), a first through hole (11) communicated with the air extraction opening (2) is formed in the connecting seat (9) along the direction of the first mandrel (10), the first mandrel (10) is telescopically arranged in the first through hole (11), an air extraction hole (12) communicated with the first through hole (11) is formed in the connecting seat (9), and the air extraction hole (12) is used for being connected with a vacuum pump;
an elastic piece (14) is sleeved on the first mandrel (10), one end, close to the first flange plate (5), of the elastic piece (14) is in contact with an outer flange part (101) positioned at the tail end of the first mandrel (10), and the other end of the elastic piece (14) is connected with a shell of the first cylinder (7) in an extrusion mode;
a cushion block (31) is arranged between the first air cylinder (7) and the connecting seat (9), the other end of the elastic piece (14) is connected with the cushion block (31) in an extrusion mode, a second through hole (32) through which a piston rod of the first air cylinder (7) and the first mandrel (10) can penetrate is formed in the center of the cushion block (31), and an air outlet hole (33) communicated with the second through hole (32) is formed in the outer end face of the cushion block (31);
a door opening (35) is formed in the vacuum bin body (1), a sealing ring (36) is arranged at the peripheral edge of the door opening (35), a movable door body (37) is arranged at the front side of the door opening (35), a door frame (38) is respectively arranged at the left side and the right side of the door body (37), a linear guide rail (39) is respectively arranged on the vacuum bin body (1) at the left side and the right side of the door opening (35), and the two door frames (38) are respectively connected with the corresponding linear guide rail (39) through a sliding block (40) so that the door body (37) can move up and down along the vertical direction;
a guide bar (42) is arranged between the linear guide rail (39) and the door frame (38), at least one rotatable guide bearing (43) is arranged on the side end surface of the door frame (38), and when the door body (37) moves up and down along the vertical direction, the guide bearing (43) which moves up and down along with the door frame (38) rolls on the front surface of the guide bar (42);
at least two rotatable rollers (48) are arranged between the side end surfaces of the guide strips (42) close to the door frames (38) and the corresponding door frames (38), the rollers (48) are arranged at intervals along the movement direction of the door body (37), and when the door frames (38) move up and down along with the door body (37), the side end surfaces of the guide strips (42) are in rolling connection with the corresponding door frames (38) through the rollers (48);
the front surface of the guide strip (42) is provided with a groove (44) corresponding to the guide bearing (43), the sliding block (40) is connected with the door frame (38) through a connecting block (45) and a pin shaft (46), one end of the connecting block (45) is connected with the sliding block (40), the side end surface of the other end of the connecting block (45) is provided with a strip-shaped groove (47) which is obliquely arranged, one end of the pin shaft (46) is fixedly connected with the door frame (38), and the other end of the pin shaft (46) is movably embedded into the strip-shaped groove (47);
when the door body (37) is in a closed state, the guide bearing (43) is embedded into the corresponding groove (44) and forms a gap with the bottom surface of the groove (44), a gap is formed between the pin shaft (46) positioned in the strip-shaped groove (47) and one end, close to the sealing ring (36), of the strip-shaped groove (47), and the door body (37) is in extrusion contact with the sealing ring (36);
when the door body (37) is in an open state, the guide bearing (43) rolls out of the corresponding groove (44), the pin shaft (46) positioned in the strip-shaped groove (47) moves towards one end of the strip-shaped groove (47) far away from the sealing ring (36), and the door body (37) and the sealing ring (36) are arranged at intervals.
2. The dispensing device for precision parts according to claim 1, wherein: the pad (31) comprises a main body part (311) close to the first cylinder (7) and a protruding part (312) embedded in the first through hole (11).
3. The dispensing device for precision parts according to claim 1, wherein: the elastic member (14) is a bellows-like elastic member.
4. The dispensing device for precision parts according to claim 1, wherein: a supporting washer (15) is arranged between the shell of the first air cylinder (7) and the elastic piece (14), and the supporting washer (15) is sleeved on the first mandrel (10) and is in extrusion contact with the end face of the elastic piece (14).
5. The dispensing device for precision parts according to claim 1, wherein: the air suction opening (2) and the air inlet (3) are provided with circular arc-shaped chamfers at one ends close to the inside of the vacuum bin body (1).
6. The dispensing device for precision parts according to claim 1, wherein: an air cylinder (41) is arranged on the vacuum bin body (1) and positioned below the sliding block (40).
7. The dispensing device for precision parts according to claim 1, wherein: the groove (44) comprises a plane concave part (441) and arc-shaped connecting parts (442) which are respectively connected to two ends of the plane concave part (441), and one end, far away from the plane concave part (441), of the arc-shaped connecting parts (442) is located on the same plane with the front surface of the guide strip (42).
8. The dispensing device for precision parts according to claim 1, wherein: the inclined direction of the strip-shaped groove (47) forms an included angle of 30-60 degrees with the moving direction of the door body (37).
9. The dispensing device for precision parts according to claim 1, wherein: the 2 rollers (48) are arranged in the mounting groove on the door frame (38) at intervals, and the circumferential surfaces of the rollers (48) extend out of the mounting groove and are in contact connection with the side end surfaces of the guide strips (42).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011583221.8A CN114682435B (en) | 2020-12-28 | 2020-12-28 | Adhesive dispensing device for precision parts |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011583221.8A CN114682435B (en) | 2020-12-28 | 2020-12-28 | Adhesive dispensing device for precision parts |
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| CN114682435A CN114682435A (en) | 2022-07-01 |
| CN114682435B true CN114682435B (en) | 2023-09-29 |
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| CN114682435A (en) | 2022-07-01 |
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Address after: No. 189, Wutaishan Road, High tech Zone, Suzhou City, Jiangsu Province, 215011 Applicant after: Suzhou Zhuozhao dispensing Co.,Ltd. Address before: 215011 No.3, phase I, standard plant, No.588 Wutaishan Road, high tech Zone, Suzhou City, Jiangsu Province Applicant before: Suzhou Zhuozhao dispensing Co.,Ltd. |
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